Full Opening Safety Valve

Full Opening Safety valve is a manual control ball type safety valve used to stop flow through the drill string when the drill string is being withdrawn from the well. FOSV assembled between lower Kelly sub and upper drill pipe sub. The FOSV can be opened or closed off by simply turning a special operating wrench 90° according to indicated direction. FOSV is a dual body full-opening safety valve, that does not interfere with the running of tools such as core barrels or survey instruments. It is designed to be stabbed into the top joint of drill pipe or tubing string at the rig floor and closed quickly in case a well kicks.

Description

Full Opening Safety Valve

 

1、Full Opening Safety valve is a manual control ball type safety valve used to stop flow through the drill string when the drill string is being withdrawn from the well.
2、FOSV assembled between lower Kelly sub and upper drill pipe sub. The FOSV can be opened or closed off by simply turning a special operating wrench 90° according to indicated direction.
3、 FOSV is a dual body full-opening safety valve, that does not interfere with the running of tools such as core barrels or survey instruments. It is designed to be stabbed into the top joint of drill pipe or tubing string at the rig floor and closed quickly in case a well kicks.

Specifications – Full Opening Safety Valve 

Model

XS105-T44

XS110-T51

XS124-T62

XS127-T62

XS133-T57

XS133-T57

XS134-T62

O.D.

φ105

φ110

φ124

φ127

φ133

φ133

φ134

I.D.

φ44

φ51

φ62

φ62

φ57

φ57

φ62

Connection

2A10X2A11

210X211

2 7/8 EUE

2 7/8 EUE

XT39

4 1/2VAM

310X311

Length

732

726

578

578

773

1173

800

Specifications – Full Opening Safety Valve 

Model

XS134-T62

XS146-T50.8

XS152-T76

XS152-T76

XS178-T76

XS178-T76.2

XS190-T82.6

O.D.

φ134

φ146

φ152

φ152

φ178

φ178

φ190

I.D.

φ60

φ50.8

φ76

φ76

φ76

φ76.2

φ82.6

Connection

4 1/2NU

NC31

3 1/2NU

3 1/2 EUE

3 1/2EUE

4A10X4A11

410X411

Length

580

832

640

617

675

885

895

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